Herderite and Elbaite Physical Properties

Herderite

Elbaite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.02

Subconchoidal, Conchoidal

Indistinct on {110}

5-5.5

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

2.90-3.10

Uneven, Conchoidal

Poor/indistinct on {1120} and {1011}

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Herderite and Elbaite Chemical Formula

While comparing Herderite and Elbaite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Herderite and Elbaite chemical formula.

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Herderite and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Herderite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite Vs Elbaite during the identification of gemstone. Specific gravity of Herderite is whereas that of Elbaite is .